Elevator-gate.



No. 646,968. Patented Apr. I0, |900.

, J. E. W. FUGAL.

ELEVATUR GATE.

v (Application med um. 1a, 1899.) y (No Model.) 3 Sheets-Sheet l.

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No. 646,968. Patented Apr. lo, |900. J. E. W. FOGAL.

ELEVATUR GATE.

(Application led Mar. 13, 1899.)

3 Sheets-Sheet 2.

(No Model.)

No. 646,968. Patented Apr. I0, |900..

J. E. W. FOGAL. l ELEVATUR GATE.

(Application led Mar. 13, 1899.) (N o M 0 d el.)

3 Sheets-Shoot 3- 4/,5 S14/vanto@ CMM/myd l rra STATI-2sN POATILNTVOFFICE..

JOHN E. W. FOGAL, OF QUINOY, ILLINOIS, ASSIGNOR OF ONE-HALF TO HENRY B.DINES AND JOHN O. DUSSAIR, OF SAME PLACE.

ELEVATOR-GATE.

SPECIFICATION arming part of Letters tppiicaiion inea March 1s, 1899.

To @ZZ whom it may con/eerily,.-

Be it known that I, JOHN E. W. FOGAL, a citizen of the United States,residing at Quincy, in the county of Adams and State of Illinois, haveinvented a new and useful Elevator- Gate, of which the following is aspecification.

My invention relates to operating devices for elevator-gates, and hasfor its object to provide a simple and efficient construction andarrangement of parts consisting, essentially, in an improvement upon thedevice described and claimed in my copending application, Serial No.691,879, filed September 26, 1898, and designed for automaticallyopening and closing the gates of an elevator-shaft as the carrespectively approaches and leaves the floors at which said gates arelocated.

Further objects and advantages of this invention will appear in thefollowing description and the novel features thereof will beparticularly pointed out in the appended claims. In the drawings, Figure1 is a perspective view of the gate-operating mechanism arranged inoperative relation with an elevator. Fig. 2 is an elevation of thegate-operating mechanism, showing the elevator-car and adjacent parts insection. Fig. 3 is a detail horizontal section of the clutch mechanism,showing the relative arrangement of the coperating car and gate membersas the former is being repressed out of engagement with the latter bymeans of the shifting-cam. Fig. tis a detail side view of the same. Fig.5 is a detail view in perspective of the gate member of a clutch. Fig. Gis a similar view' of a car member. Fig. 7 is a vertical section takenon the line a .ce of Fig. 2. Fig. Sis a vertical section taken on theline ,e .e of Fig. 2.

Similarreference characters indicate corresponding parts in all thefigures of the drawings.

1 designates an elevator-guide, which may be of the ordinary or anypreferred construction, arranged in the elevator shaft or well,

and 2 the elevator-car platform, from which rise uprights 3, connectedat their upper 'ends `by a cross-bar 4,' the suspending and operatingcable 5 of the elevator-car being connected with said cross-bar as inthe ordinary practice.

Arranged parallel with and adjacent to the Patent No. 646,968, datedApril 1o, 196e;

Serial No. 708,896. (No modell) elevator-guide is a supporting plate orbar 6, held in a iixed position by any suitable means and having mountedthereon the operating devices,which, in connection with complementaldevices upon the car, serve to open and close the gate 7 of theelevatorshaft, said gate having in connection therewith an operatingcable or chain 8, traversing a direction-pulley 9 upon the frame abovethe center of the gate, a similar pulley 10 adjacent to one of the sidestandards 11 of the shaft, and which constitutes one of the gateguides,a third direction-pulley 12, `mounted upon the support G, a fourthdirection-pulley 13, located upon said support 6 at an interval belowthe pulley 12, and a iifth direction-pulley 14, with its axis locatedapproximately in the horizontal plane of the axis of the pulley 12, butwith its axis at right angles to that of Y said pulley 12, the cablehaving its extremity opposite to the gate attached to a suitablecounterweight 15, which is sufficient to support the gate in anyposition in which the latter may be arranged. In the constructionillustrated the elevator-shaft is provided with duplicate oppositegates, which necessitates the addition of an auxiliary cable-section 8a,traversing a series of pulleys 9, 10, and l2, corresponding with thoseabove described, and suitably connected at its extremity opposite tothegate with the main gate-operating cable.

Carried bythe gate operating and supporting cable, at its parallelportions 8b and 8c between the direction-pulleys 12 and 14 and thepulley 13, are gate clutch members. consisting of similar plates 16 and17, preferably let into the cable by having the contiguous extremitiesof separated portions of the cable engaged with terminal eyes or keepers18 thereof, and each of said clutch-plates carries upper and lowerspaced clutch-ears 19 and 20, arranged in a vertical plane andhavinginclined outer or remote sides and abrupt or shouldered inner oradjacent sides.. Also the intermediate portions 8b and 8c of the gateoperating and supporting cable operate, preferably, in channels orguides 21, formed upon the fsupport 6 and. cross-sectionally dovetailedin constructiomwith overhanging front flanges 22, by which theclutch-plates 16 and gate. which the gate is provided to facilitateits'` 17 are held from transverse vibration and are guided in theirvertical reciprocation during the movement of the gate in oppositedirections. The clutch-ears 19 and 20, however, project through andslightly beyond the slots in the face of the guides thus formed, wherethey are in position to be engaged by upper and lower car clutch members23 and 24, arranged upon the car respectively at the upper end of theadjacent car-upright 3 and the car-platform 2. Each of these car membersis provided with a clutch-dog 25, which is arranged to span one of theguides in the support 6, and at opposite sides ot the dog are arrangedshoes 26, having inclined or beveled terminals and adapted to traverseparallel ways formed by the portions of the surface of the support atopposite sides of said guides. A lso each of said car m-embers,which isyieldingly held in operative relation with the guide in which thecoperating gate member is mounted, (to cause said shoes to traverse theways,) is provided with stems 27, fitted in guide-openings inbracket-plates 28 and 29, by which said car members are respectivelyattached to the car, and coiled upon each ot' the stems is adog-actuating spring 30, by which the said yielding contact between theshoes and the ways is maintained. Arranged upon the ways, in the pathsof the shoes of the car members, are terminally beveled or reducedshifting-cams 3l and 32, arranged at points near the limits of movementof the gate members, it being obvious that the path of movement of eachgate member is limited by the extent of movement of the connected Thevarious antifriction rolls with movement form no part of my presentinvention, and hence while indicated in the drawings do not requirespecific description.

Assuming that the elevator-car is in the position indicated in thedrawings, with its platform in the plane of a floor of the building andi the elevator-gate being elevated or opened, it will be seen that theupward movement of the car from said floor will cause the deflection orrepression of the lower car member by the contact of the shoes of saidmember with the adjacent shifting-cam to carry the dog of the lower carmember over the lower ear of the coperating gate member (andsimultaneously cause the deflection of: the upper car member todisengage its dog from that gate member.` with which it has beencoperating) and subsequently cause said dog of the lower car member toengage the upper ear of the coperating gate member, whereupon thecontinued 'upward movement of the car will cause said dog ofthe lowercar member to impart upward movement to the coperatin g gate-member,thus imparting upward movement to the portion 8b of the gate operatingand supporting cable,correspondin g downward movement tothe 'connectedportion 8c of the cable,and the elevation of the counterweight, at thesame time allowing the gate to descend by gravity. During the elevationot the gate member on the cablex portion Sl the other gate member willbelow-v ered, and when the lower car member reaches the upper set ofshifting-cams it will be repressed or deflected to disengage the dog ofsaid lower car member from the ear of' the cooperating gate member, thegate then being in its closed position. As the car approaches a floorfrom below the opening of the gate is accomplished by the engagement of'the upper car member with the coperating gate member,the dog of the saidupper car member being carried over the lower ear of' the adjacentshifting-cam and dropped between said ears to engage the upper ear, andthus carry the gate member upward to elevate the gate. On the otherhand, as the car approaches a iioor from above the lower car member isdeflected by the upper shifting-cam adjacent to its coperating gatemember to carry the dog over the upper clutch ear and'drop it above andin operative relation with the lower clutch-ear, whereupon the continueddownward movement of the car causes the communication of motion throughsaid lower car member to the coperating gate member, said lower clutchmember being subsequently disengaged from the coperating gate member bythe lower cam to release the gate for subsequent closing movement by theengagement of the upper car member with the lower clutch-ear of the gatemember on the portion 8 of the operatingcable.

It will be seen from the foregoing description that I have provided twogate members operatively connected with a gate for simultaneous movementin opposite directions,each gate member having spaced upper and lowerengaging elements consisting of the described clutch-ears 19 and 20, andhave also provided i upper and lower car members adapted'for respectiveengagement with said gate members, each car member being yieldingly heldin position to engage its coperating gate member, and have alsoprovidedupper and lower IOO IIO

shifting-cams, so arranged as to carry each car member over and beyondthe near clutchear of its coperating gate member or that clutch-earwhich it first reaches in approachinga gate member, and cause theengagement of said car member with the far lor remote ear of thecoperating gate member, whereby when a car member engages a gate memberthe clutch-dog of the former is arranged between the abrupt orshouldered terminals of the gate member to insure the positivecommunication of motion from the car to the gate and reduce'thepossibilities of accident. Furthermore, should a gate be opened partlyby hand, whereby the gate members are located at the intermediate pointsof their paths of movement, and hence not in operative relation with thestationary shifting-cams, the beveled or cam-faced portions of theclutchears on the gate members will serve to deflect or repress the carmembers, and thus insure the above-described location of the clutchdogbetween the abrupt or shouldered portions of said clutch-ears. Thus therelation between the parts is such as to adapt the gate members of theclutches to constitute safety devices which maintain the gate in acertain definite relation to the car throughout that portion of themovement of the car when a car member is in engagement with a clutchmember, or, in other words, during the movement of a gate. It will beunderstood,further more, that in practice various changes in the form,proportion, size, and minor details ot' construction Within the scope ofthe appended claims may be resorted to without departing from the spiritor sacrificing any of the advantages of the invention.

Having described my invention, what I claim is l. Anelevator-gate-operating mechanism consisting of clutches, comprisinggate members mounted for movement in guideways parallel with theelevator-shaft and operatively conneoted with the gate for simultaneousmovement in opposite directions, each member having upper and lowerclutch-ears, and upper and lower car members or dogs mounted upon thecar for movement in paths transverse to that of the car, each of saidcar members comprising a pair of terminallybeveled shoes operating atopposite sides of the guideway, and a bar rigidly connecting the shoesand spanning the guideway and forming the dog proper, and shifting-camsl arranged in the paths of said shoes, substantially as described.

2. Gate-operating mechanism for elevators each carmember comprising ayielding clutchdog, shoes carried by the opposite ends of the dog, astem extending backward from the dog, a spring encircling said stem andacting to urge the dog outward from the car, a supporting-bracket forthe dog having its base portion slotted and adjustably connected to thecar, and shifting devices for the car members, substantially as and forthe purpose specified.

4 3. In operating mechanism for automatic elevator-gates,clutchescomprising gate members, and car members cooperating therewith, acounterbalance-weight for the gate, anda double guide comprisingsections fastened tiatwise together and provided in their meeting faceswith opposing grooves forming an inclosed guideway for thecounterbalance- Weight, one of the sections having guideways for thegate members formed in its exposed face, substantially as described. p

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two Witnesses.

JOHN E. W. FOGAL.

Witnesses:

E. M. WHIPPLE, A. R. HARVEY.

